## Abstract

A waveguide, which is part of an integrated optical circuit is arranged onto a planar substrate, and has a core section propagating light to a direction of propagation. The waveguide is a conversion waveguide between a ridge-type waveguide and a strip waveguide. In the conversion waveguide, the core section is made of the one and same material so that the cross-section of the core section transverse to the direction of propagation of light is two-step from both edges. The conversion waveguide has two layers of different widths so that the height of the first layer is equal to the height of the ridge of the ridge-type waveguide, and the height of the second layer is equal to the height of the base part of the ridge-type waveguide.

AT491964 E 20110115 AT20030745808T 20030411

AU2003216773 AA 20031020 AU20030216773 20030411

AU2003226845 AA 20031020 AU20030226845 20030411

AU2003226845 AB 20031020 AU20030226845 20030411

CA2482178 AA 20041008 CA20032482178 20030411

CA2482178 C 20110104 CA20032482178 20030411

DE60335352 D1 20110127 DE20036035352T 20030411

EP1495350 A1 20050112 EP20030745808 20030411

EP1495350 B1 20101215 EP20030745808 20030411

ES2360090 T3 20110531 ES20030745808T 20030411

FI20020698 A0 20020411 FI20020000698 20020411

US2005213912 AA 20050929 US20030510746 20030411

US7221843 BB 20070522 US20030510746 20030411

WO03085429 A1 20031016 WO2003FI00276 20030411

WO03085430 A1 20031016 WO2003FI00279 20030411

**Patent family as of 26.8.2021**AT491964 E 20110115 AT20030745808T 20030411

AU2003216773 AA 20031020 AU20030216773 20030411

AU2003226845 AA 20031020 AU20030226845 20030411

AU2003226845 AB 20031020 AU20030226845 20030411

CA2482178 AA 20041008 CA20032482178 20030411

CA2482178 C 20110104 CA20032482178 20030411

DE60335352 D1 20110127 DE20036035352T 20030411

EP1495350 A1 20050112 EP20030745808 20030411

EP1495350 B1 20101215 EP20030745808 20030411

ES2360090 T3 20110531 ES20030745808T 20030411

FI20020698 A0 20020411 FI20020000698 20020411

US2005213912 AA 20050929 US20030510746 20030411

US7221843 BB 20070522 US20030510746 20030411

WO03085429 A1 20031016 WO2003FI00276 20030411

WO03085430 A1 20031016 WO2003FI00279 20030411

**Link to current patent family on right **

Original language | English |
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Patent number | EP1495350 |

IPC | G02B 6/ 12 A N |

Priority date | 11/04/03 |

Publication status | Published - 12 Jan 2005 |

MoE publication type | H1 Granted patent |